I-5 over Whatcom Creek
FairWhatcom County, Washington · 2.9 N JCT SR 11 · Structure no. 0005525B0000000
- Built
- 1957
- 68 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 154 ft
- 3 main spans
- Daily traffic
- 33,565
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-5 over Whatcom Creek is a concrete continuous slab carrying I-5 over Whatcom Creek in Whatcom County, Washington. It was built in 1957, so it is 68 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 33,565 vehicles a day, roughly 7% of them trucks, projected to reach 47,632 by 2039. The structure is 154 ft (46.9 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-5 over Whatcom Creek built?
It was built in 1957, making it 68 years old in 2025.
What condition is I-5 over Whatcom Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does I-5 over Whatcom Creek carry?
About 33,565 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is I-5 over Whatcom Creek?
The structure is 154 ft (46.9 m) long with a longest span of 58 ft (17.7 m) and a deck 56 ft wide.
Who owns I-5 over Whatcom Creek?
It is owned by the State Highway Agency.